Light emitting device and electronic apparatus

Abstract

There is provided a light emitting device (10) including: a light emitting surface configured by arranging a plurality of unit regions (200) in a two-dimensional array, each of the unit regions including a plurality of light emitters (202, 204); and a control unit (400) that drives the light emitters individually. Each of the unit regions includes a first light emitter and a second light emitter that emit lights having wavelengths different from each other in a near-infrared region.

1 . A light emitting device comprising:
 a light emitting surface configured by arranging a plurality of unit regions in a two-dimensional array, each of the unit regions including a plurality of light emitters; and   a control unit that drives the light emitters individually, wherein   each of the unit regions includes a first light emitter and a second light emitter that emit lights having wavelengths different from each other in a near-infrared region.   
     
     
         2 . The light emitting device according to  claim 1 , wherein the first and second light emitters emit light having a wavelength of 850 nm to 1500 nm. 
     
     
         3 . The light emitting device according to  claim 1 , wherein
 each of the unit regions further includes a third light emitter that emits light having a wavelength in a near-infrared region, the wavelength being different from the wavelengths of the light emitted by the first and second light emitters, and   the control unit drives the third light emitter individually.   
     
     
         4 . The light emitting device according to  claim 1 , wherein
 each of the unit regions includes one or a plurality of fourth light emitters that emit light in a visible light region, and   the control unit drives the fourth light emitters individually.   
     
     
         5 . The light emitting device according to  claim 4 , wherein the plurality of fourth light emitters include three light emitters that emit different lights in the visible light region. 
     
     
         6 . The light emitting device according to  claim 1 , wherein each of the unit regions further includes one or a plurality of sensor elements that receive reflected light from a subject. 
     
     
         7 . The light emitting device according to  claim 6 , wherein the sensor element is at least one of an SWIR sensor, a visible light sensor, and an EVS. 
     
     
         8 . The light emitting device according to  claim 1 , wherein, in each of the unit regions, the plurality of light emitters are arranged in a form of any one of a square array, a rectangular array, a stripe array, a polygonal array, and a substantially circular array. 
     
     
         9 . The light emitting device according to  claim 1 , wherein areas of the first light emitter and the second light emitter included in each of the unit regions are different from each other. 
     
     
         10 . The light emitting device according to  claim 1 , wherein the light emitter is configured of any one of an LED, an OLED, a laser element, and a liquid crystal. 
     
     
         11 . The light emitting device according to  claim 1 , wherein the first and second light emitters are provided adjacent to each other on a substrate. 
     
     
         12 . The light emitting device according to  claim 1 , wherein the first and second light emitters are provided to be stacked on each other on a semiconductor substrate. 
     
     
         13 . The light emitting device according to  claim 12 , wherein
 each of the unit regions includes   a plurality of color filters provided on stacked layers of the first and second light emitters.   
     
     
         14 . The light emitting device according to  claim 1 , wherein the control unit controls each of the light emitters to project light having a predetermined pattern onto a subject. 
     
     
         15 . The light emitting device according to  claim 14 , further comprising
 a projector lens that projects the light having the predetermined pattern from the light emitting surface onto a subject.   
     
     
         16 . The light emitting device according to  claim 15 , wherein the projector lens enlarges or reduces the light having the predetermined pattern. 
     
     
         17 . The light emitting device according to  claim 16 , wherein the control unit controls the projector lens to enlarge or reduce the light having the predetermined pattern. 
     
     
         18 . The light emitting device according to  claim 1 , wherein
 the control unit controls the first light emitter and the second light emitter to emit light at different timings.   
     
     
         19 . The light emitting device according to  claim 1 , wherein the control unit controls the first and second light emitters to simultaneously emit light in a predetermined period. 
     
     
         20 . An electronic apparatus equipped with a light emitting device, wherein
 the light emitting device includes:   a light emitting surface configured by arranging a plurality of unit regions in a two-dimensional array, each of the unit regions including a plurality of light emitters; and   a control unit that drives the light emitters individually, and   each of the unit regions includes a first light emitter and a second light emitter that emit lights having wavelengths different from each other in a near-infrared region.